Future trends: WiFi 6 and the next generation of apps

The Evolution of Wireless Standards

Short: Three WiFi generations define the current landscape:

Three WiFi generations define the current landscape:

• WiFi 5 (802.11ac) — 3.5 Gbit/s theoretical maximum
• WiFi 6 (802.11ax) — 9.6 Gbit/s theoretical maximum
• WiFi 7 (802.11be) — 46 Gbit/s theoretical maximum

For most business applications, raw throughput is less important than device density, latency, and reliability. This is where WiFi 6 makes the biggest practical difference.

What WiFi 6 Actually Changes

OFDMA: More Efficient Use of the Radio Channel

OFDMA (Orthogonal Frequency Division Multiple Access) allows a single access point to serve multiple devices simultaneously on the same channel.

In dense environments — production floors, office buildings, trade shows — this prevents the throughput collapse that affects WiFi 5 when many devices compete for airtime.

MU-MIMO: Parallel Communication With Multiple Devices

Multi-user MIMO allows the access point to communicate with up to eight devices simultaneously. WiFi 5 supported this in the download direction only. WiFi 6 adds it for uploads as well.

For IoT deployments with hundreds of sensors transmitting regularly, this is a significant capacity improvement.

Target Wake Time: Longer Battery Life for IoT Devices

Target Wake Time (TWT) allows devices to schedule when they wake up to transmit. Devices sleep for longer periods between transmissions. Battery life for IoT sensors and wearables extends substantially.

This makes WiFi 6 practical for battery-powered devices that previously required BLE or Zigbee.

1024-QAM: Higher Data Density

Higher-order modulation (1024-QAM vs. 256-QAM in WiFi 5) increases throughput by approximately 25% under good signal conditions. For file transfer-intensive applications, this is a measurable improvement.

BSS Coloring: Reduced Interference in Dense Deployments

BSS Coloring allows access points to distinguish between their own traffic and traffic from neighboring networks. This reduces unnecessary backoff waiting and improves performance in environments with overlapping WiFi networks.

What This Enables for Business Applications

Short: WiFi 6 unlocks several application categories that were impractical on previous standards:

WiFi 6 unlocks several application categories that were impractical on previous standards:

• Industrial IoT at scale — hundreds of sensors transmitting real-time data on a single access point without throughput degradation
• Augmented reality in production — stable, low-latency connections for AR-assisted assembly or maintenance guidance
• HD video streaming in meeting rooms — 4K video conferences without buffering, even with many concurrent users on the same network
• Real-time machine control — wireless connections stable enough for time-sensitive industrial automation

WiFi 7: What Is Coming Next

Short: WiFi 7 (802.11be) is commercially available in 2024–2025. Key specifications:

WiFi 7 (802.11be) is commercially available in 2024–2025. Key specifications:

• Theoretical maximum: 46 Gbit/s
• Channel width: up to 320 MHz
• Multi-Link Operation (MLO): devices use multiple frequency bands simultaneously
• 4096-QAM modulation
• Latency below 1 millisecond for supported use cases

For most business environments, WiFi 6 provides more than sufficient capacity for the next five to seven years. WiFi 7 becomes relevant for latency-critical industrial applications and extremely high-density deployments.

Recommendations for Future-Ready App Development

Short: When building apps for WiFi-connected environments:

When building apps for WiFi-connected environments:

• Build for variable bandwidth — implement adaptive quality based on available connection speed; do not assume maximum throughput
• Maintain backward compatibility — WiFi 5 and WiFi 4 devices will coexist with WiFi 6 networks for years
• Leverage TWT in IoT firmware — schedule wake times to extend battery life for battery-powered devices
• Design for density — assume many devices will share the same access point; avoid protocols that create contention

"IoT projects rarely fail on technology — they fail on a missing data and value strategy." — Björn Groenewold, Managing Director, Groenewold IT Solutions